Piano-bench.



PATENTED MAY 26, 1908.

H. L. SCHUFF.

PIAN() BENCH.

APPLIQATION HLED un. 11. 1907 iig/ T Winn: .T

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Inventoz Witwe/soa:

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- Figure 1 is a lowered. The seat 12 may thus be easily p PIANO-BENCH.

Specification of Letters Patent.

Patented May 26, 1908.'

Application led April 1l, 1907. Serial No. 367,647.

To all i12/com 'it may concern:

Be it known that l, llAltnY l1. ScnUFF, a citizen of the United States,residing at l Marietta, in the county of Washington and State of Ohio,have invented certain new and useful Improvements in `Piano-Benches, ofwhich the following is a spcciiication.

M'y invention relates to piano benches, and has particular reference toa duet bench which may be raised and lowered to suit the players, andthe object thereof is to provide a mechanism which will retain itsrigidity and appearance when in the raised position.

My invention specifically resides in the following features ofconstruction and arrangement as hereinafter described and pointed out inthe accompanying drawings, in which,

longitudinal sectional view through aI piano benchconstructed inaccordance with my invention. Fig. 2 is a cross section on the line 22of Fig. 1, looking in the direction indicated by the arrows, and Fig. 3is a perspective view of a modified arrangement to be hereinafterspecificall referred to.

n the practical embodiment of my invention I provide the bench body 10,supported b the legs 11, and provided with an adjusta le seat board 12.Depending from the seat board 12 at either end thereof are the rack bars13, provided with a rack 14 thereon, and arranged through openings 15 inthe bench body 10. Arranged within the body 10 below the openings 15 areguide frames 16, through which the rackv bars 13 are slidably arranged,said guide frames being provided with rollers 17, projecting through alongitudinal slot or opening '18 in the rack bar'13. Slidably mountedthrough a bracket 19, attached to the guide frames 16, are the lockingdogs 20, normally ressed into engagement by means of a leaf spring 21,and adapted to be withdrawn from engagement therewith by means of theangular arms 22, mounted onthe ends of the operating rod or shaft 23. Ahandle 24 rigidly connected to the rod 23 intermediate its ends isadapted to be moved downwardly to rock said rod 23, and move the angularextension 22 thereof to withdraw the dog 20 from engagement with therack 14 to allow the seat 12 to be raised Without operating themechanism.

In the modified form shown in Fig. 3 the rack bars 13 are providedwithfaced racks 25, and are mounted through guide frames 16, provided withan angular extension plate 2G, on which is.v Inoulited the bracket li)which carries the locking dog 20. ln this forni l mounted through thebench body 10 in brackets 28, and provided with an olier'aling plate 2i)keyed or otherwise rigidly secured to move therewith and havingconnecting rods 30 secured inits upper and lower extensions on a planetransverse to the plane of the rod 27. i secured at their other ends tothe locking dogs 20 at opposite ends of the bench, and are adapted towithdraw said dogs from engagement with their respective racks 25 on apartial rotation of the operating rod 27 by means of its handlel. Thusit will be seen that I provide a simple and inexpensive ar rangementwhereby the bench in all its adjustments will maintain a desiredrigidity and appearance.

Having thus fully described my invention I claim:

1. In an adjustable piano-bench, the combination with a stationary body,of a seat board provided with depending rackbars slidably mountedthrough said body and having central longitudinal slots therein, platessecured within said body and havin guides formed thereon through whichsait rack bar works', and having rollers mounted thereon for engagementwithin said slots, locking dogs arran ed for engagement with said rackbars, gui es formed on said plates for the reception of said dogs, leafsprings se` cured within said body and bearing against said dogs to holdthe same in engagement with said rack bars, and a rock shaft suitablyThe connecting rods 3() are' ,co provide a transverse operating rod 2,7.v

journaled within said body and provided with angular extensions securedto said dogs to withdraw the same upon the rotation of said shaft, and ahandle for rotating said shaft having adjustable connection therewith,substantially as described.

2. In an adjustable piano-bench, the com' bination with a stationarybody, of a sea-t board provided with depending rack hars slidablymounted through said body having central lonwitudinal slots therein,platesv secured within said body having uides formed thereon throughwhich said rae bars work and rollers mounted thereon for engagementwithin said slots, locking dogs arranged for engagement with said rackbars, guides on said plates for. the reception ofv formed -said dogs,leaf springs secured within said able connection with saidshat,substantially l0 body and bearing against said dogs to hohl asdescribed.

the same in engagement with said rack bars, In testimony whereof I aflixmy signature a rock shaift siitablf journaleid in1 brackelats inpresence of two witnesses.

Wit iin sai( bol am roviil c( Wit 1 anvil ar extensions secuiid to saiddogs to Withiraw HARRY L' SCHUFF' the same upon the rotation of saidshaft, and Witnesses:

a handle for rotating said shaft having move- HENRY SCHUFF,

ment in a vertical plane and having adjust- CLARENCE A. PERKINS.

